Dividing machine



May 22, 1951 M. A. MATTARE nxvmmc MACHINE 4 Sheets-Sheet 1 Filed May 23, 1946 INVENTOR M M PK/LMATm/PE ATTORNEY May 22, 1951 M. A. MATTARE DIVIDING MACHINE 4 Sheets-Sheet 3 Filed May 23, 1946 INVENTOR 5 e m m m P M ATTORNEY May 22, 1951 M. A. MATTARE DIVIDING MACHINE 4 Sheets-Sheet 4 Filed May 23, 1946 ATTORNEY E P mam A R m m M A. MK M M I. 1 M W mm M Z P N J. C Q Q i m fifim w Q E fi Patented May 22, 1951 UNITED STATES PATENT OFFICE Mark A. Mat-tare Arlington, Va., assignor to the United States of America as represented by the Secretary of the Interior (Granted under the act of March '3, 1883, as amended April 30, 1928; 370 O. G. 757) 5 Claims.

The invention described herein may be manuiactured and used by or for the Government of the United States for governmental purposes without the payment to me of any royalty thereon in accordance with the provisions of the act of April 30, 1928, '(Ch. 460, 45 Stat. L. 467).

My invention relates to dividing machines and particularly to one which is primarily used for scribing in an emulsified film on a glass negative a plurality of uniformly spaced graduations (or "ticks) adjacent to equally spaced meridian lines or "projections. My machine includes means for at will scribing lines of any one of a plurality of predetermined lengths, and on either or both sides of a meridian line and also means for 'at will varying the spacing of the graduations. With my machine it is also possible to mark a sensitized glass plate negative of a map with a scale based upon the recorded distance between two identifiable points.

In the accompanying drawings illustrative of a preferred embodimentof my invention- Fig. l is a plan view, showing my device in operative position upon a glass negative.

Fig. 2 is a section taken on the line "2-"2 of Fig. 1.

Fig. 3 is a section taken on the line 3'- 3 of Fig. 1.

Fig. 4 is an enlarged fragmentary plan of a portion of parts shown in Fig. 1, to more clearly illustrate my stop mechanism.

Fig. 5 is a detail of various combinations of marks inscribed by my device.

Fig.6 is an enlarged transverse section taken en the line 6 6 of Fig. 1.

Fig. '7 is a greatl enlarged plan view of my "scriber holder.

8 is a detail of a detachable bracket used to limit the upward movement of my scriber while my device is in operation.

Fig. 9 is a detail section on line 9-4! of Fig. 1, showing the construction of the pivot on my adjustable space gauging lever.

Fig. 10 is a greatly enlarged horizontal section on the line l t-l of Fig. 3, showing my spacing lever in engagement with a spacing pin.

In these drawings, a base plate H is provided with parallel tracks or rails I2 on the upper face of the base II on which tracks are mounted a two-part movable carriage i3, I4, the lower -'section H of which is provided with suitable grooves l and also with shouldered slots l6 for headed machine screws ll which are threaded into the base H and serve to prevent accidental separation "or the carriage l3, M from the base plate ll.

2 Two marginal guide bars l8 are rigidly-attached to the lower section [3 of the carriage by screws l9 and guide the upper section [4 of the carriage as it is shifted.

Two spaced guide bearings 20 are rigidly secured to the lower carriage section 13 and each is provided with a removable cap 2| which is rigidly secured to the bearings 20 by screws 22. Each bearing 29 is provided with a locking plate 23 which is clamped againsta carriage bar 24 by a set screw 25. A second set screw 26 in the cap 2! clamps the bar 24 against the bottom of the bearing '23, and with the set screw 25 serves to take up all lost motion between the bar 24 and bearing '29. A companion carriage bar 2'! is connected to the bar 24 by terminal links 28 and. '29 and is resiliently raised by coiled springs 36 operably connected to each link.

A scriber carriage 3|, previded with a removable cap 32, is slidably mounted on the carriage bar 2! and is held by a lockingplate which is pressed against the bar '21 by a thumb-screw '34. The scrib'er carriage 3i is provided with a Slide 35, and 'a holding plate 33, a vernier thumbscrew 36 and a compression spring 3'l the latter serving to resiliently oppose the thumb-screw 36. The horizontal portion 35'-+A of slide 35 is Drovided with a plurality of split sockets 3B and clamping thumb-screws 39 to permit the use of a plurality of sizes of scriber pins 40 (or a. peneil or a Leroy pen, not illustrated).

When the machine is in use a detachable bracket 4| is secured to the carriage bar 24 by a locking thumb-screw 42 and limits the raising of the scriber pin 40 by the coiled springs '30.

The length and direction of the graduations is regulated by a movable stop bar '43 comprising offset portions 44 and 55 which are rigidly connected by a diagonal bar 46 The stop bar 43 'is provided with a stop lug 47 and a handle 48. Rigidly attached to the base plate I! are companioh upwardly extending lugs 49 and 50 which extend into apertures 5| and 52 in the carriage section I3; these apertures are materially larger than the lugs 49 and 50 to permit relative movement of the carriage with respect to the base plate H.

The lug 49 is provided with a plurality of capstan-headed screws 53; 54; 55 and 5B which serve as adjustable stops. The companion lug 56 is also provided with a plurality of capstanheaded screws 57'; '58; 59 and so which extend in the opposite direction to the first set or capstanhead'ed screws. Each of these adjustable "stop is. U screws is provided with a capstan-type lock nut 6!.

The lug as is provided with a recessed latch '52 which is frictionally held and is provided with an operating pin 53. A similar latch 52 in the lug 59 has an operating handle 63-A. The carriage i3 is provided with a latch-receiving recess E5 opposite the lug 49 and a similar latch-receiving recess 55 is opposite the lug 56, both recesses being wider than the latches 62 to permit restricted motion of the carriage 13, M, with respect to the base plate H.

A pinion E6 having a knurled head 6'! is mounted on one or" the guide bars l8 and meshes with a rack 63 rigidly secured to the upper section i i of the movable carriage to provide a means for adjusting the size of the carriage l3, it, while two knurled clamping screws 5d in com panion slots I8 in the section I4 provide a means for clamping the section ['5 to the section it of the carriage. A pinion H is supported in a bearing bracket rigidly attached to one of the guide bars i8 and is provided with an operating lever H-A. To the base II there is attached a rack 'HB with which the pinion ll meshes to move the carriage l3, l4, and the scriber pin "it while two tension springs 12 connect the carriage section 13 to the base plate I l and provide a resilient means for returning the carriage and the scriber pin to their initial positions.

At the mid-point of the carriage bar 2% there is pivoted a lever section l3 which is arranged to telescope within a tubular lever section id. The latter is pivotally connected with the carriage section I l by a pivot pin 15 and near the outer end of the lever section it an anti-friction roller 76 in a bearing Ti provides a freely movable support on the carriage section Hi. A lever 33 is pivoted to the lever section '14 and is provided with a curved terminal claw l9 and a sighting hole 86 and is resiliently pressed by a compression spring 3|. The carriage section Hi is provided with a plurality of upwardly extending pins 82, arranged in an arc, to which the lever l3, 14

is selectively locked by the claw 19, the latter being unlocked by downward pressure on the lever 13. The spacing of these pins is calculated 'to produce equal spacing of the ticks and therefore varies progressively each way from the mid-point of the arc. Two handles 83, which extend laterally from the base i l, serve to assist an operator to align my machine with a selected meridian or the like.

For operation, my device is aligned on an emulsified glass negative with the carriage bars 24 and 21 parallel with a selected line on the negative and the scriber pin as at a selected starting point. If a trial discloses that the initial setting of the machine makes spaces which are too wide, the telescoping lever 13, l -l is shortened by turning the pinion 66 and thereby reducing the size of the carriage I3, I 3, and thereby also shortening the lever 73, M. After the width of the spaces has been correctly adjusted, the

scriber pin 4B is set approximately at a desired starting point and clamped with the thumbscrew 34; then with the aid of the Vernier thumb-screw 36, the pin is accurately set at the zero point.

If the graduations are to be marked above the line, as illustrated at 84 in Fig. 5, the stops 53 to 56 (Fig. 4) are used with the latch 62 in the lug 49. The stop bar 43 is shifted until the lug 4-7 is in alignment with a selected stop, for example No. 54, the scriber pin is then lowered and pressed against the glass plate while it is reciprocated by the lever I 1A to cut a line in the coating, the pin being brought to rest when the lug 47 reaches the stop 54. Longer or shorter lines may be cut by shifting the stop bar into alignment with another of the stops, for example, No. 53 or No. 55. The travel of the carriage and scriber pin 40 may also be restricted by using the latch 62 in the lug 5%. Graduations 85 are out on the lower side of the line by using the adjustable stops 5'! to 6B and the latch 62 in the lug 50. For marking on both sides 86 of the reference line at a single stroke, both latches 62 are retracted and a selected stop from each group of stops is used. When each line has been completed, the coiled springs 39 raise the scriber pin 46 from the emulsified surface and resiliently press the bar 2? against the bracket 4|, and at the same time the tension springs 12 return the scriber pin 40 to'the starting position.

At 81, Fig. 5, there is a typical showing of a scale of distances, while 88 is a glass plate negative on which lines are shown between which graduations are to be scribed. A plurality of rubber suction cups 89 support my machine on a varies progressively for each parallel of latitude from the equator to the pole. After my machine has been adjusted as above outlined, it becomes a mere manual operation as my pivoted lever is successively released from one pin and locked to a selected succeeding one to produce neat, uniformly spaced graduations or ticks.

I have shown and described one embodiment of my invention, but it is to be understood that it is capable of many modifications. Changes, therefore, in the construction and arrangement may he made without departing from the spirit and scope of the invention as disclosed in the ap-. pended claims, in which it is my intention to claim all the novelty inherent therein as broadly as possible in view of the prior art.

What I claim is:

1. In a device of the class described, the combination with a suitable base provided with supporting suction cups, an extensible carriage mounted for reciprocating motion on said base and provided with a rack, a gear mounted on said base and engaging said rack, a telescoping lever having one member pivotally mounted on an upper one of said carriage sections, a plurality of space regulating pegs arranged in an are on said upper carriage section, a pivoted claw member for selectively locking said pivoted lever member to said pegs, a transversely reciprocable bar mounted in a second portion of said carriage and ill first bar and connected thereto by links, a twopart scriber carriage mounted on said second bar, means for clamping said scriber carriage to said supporting bar and micrometer means providing limited movement between the main portion or" said scriber carriage and a companion scriber holding portion, means for adjustably clamping said carriage sections to each other, means for reciprocating said carriage and attached scriber, means for adjustably regulating the movement of said carriage and means for at will reciprocating said carriage for causing a scriber on said scriber carriage to cut graduations on a selected portion of said surface to be marked. I i

2. In a dividing engine provided with a suitable supporting base adapted for mounting upon a plane surface to be marked, selective means for regulating the lengths of graduations, and means for marking graduations on a selected side of a line, the improvement which comprises a reciprocable carriage comprising two overlapping sections, clamping means for coupling said sections together, a lever composed of two telescoping sections one of which is pivotally connected to one of said extensible carriage members, a plurality of spacing elements rigidly mounted on said member and means for selectively clamping a free end of said lever to one of said spacing elements.

3. In a graduating machine provided with a base adapted for mounting upon a plane surface to be marked, the combination with a carriage comprising two relatively movable sections, means for at will varying the eifective length of said carriage, manually operated means for advancing said carriage with respect to said base, resilient means for retracting said carriage, a first lever section pivotally mounted on one car riage section, a second lever section telescopically connected with said first lever section, a plurality of spaced pins arranged in an are extending upwardly from said one carriage section, a curved terminal claw on said first lever section adapted to be selectively locked to said pins, two latches and cooperating stops adapted to selectively limit the movements of said carriage, a plurality of adjustable stops to selectively limit the movement of the carriage, a carriage bar pivotally connected to the free end of the second carriage section and extending at right angles to the direction of reciprocation of said carriage, a scriber carriage slidably mounted on said carriage bar, a scriber pin adjustably mounted in said scriber carriage, means for adjusting said scriber pin and scriber carriage with respect to said carriage bar and resilient means for raising said carriage bar and scriber carriage.

4. In a device for marking fiat surfaces with spaced graduation marks by means of a scriber or the like, the improvement which comprises a base, resilient suction cups for mounting said base over a selected portion of said surface, an extensible carriage comprising two relatively movable sections mounted on said base, means for reciprocating said carriage on said base, a plurality of space regulating pegs arranged in an are on one of said carriage sections, a first lever section pivotally mounted on one section of said carriage, means for selectively locking said lever section to said pegs, a second lever section telescopically connected to said first lever section, a transversely reciprocable bar mounted on the other section of said carriage and pivotally connected to the second lever section, a second reciprocable bar parallel to said first bar and connected thereto by links, a scriber carriage slidably mounted on said second bar, means for clamping said scriber carriage to said second bar, rack and gear means for adjusting the extension of said carriage, means for clamping said carriage sections in adjusted positions relative to each other, means for limiting the movement of said carriage with respect to said base, resilient means for raising said scriber and resilient means for returning said extensible carriage to initial position.

5. In a device for marking flat surfaces with spaced graduation marks by means of a scriber, the improvement which comprises a base, resilient suction cups for mounting said base over a selected portion of a surface, a carriage comprising two overlapping sections reciprocally mounted on said base, means for at will clamping said carriage sections together in selected relative positions, a plurality of spaced pegs rigidly mounted in the upper of said carriage sections, an extensible lever pivotally mounted on the upper of said carriage sections, a lever with a terminal claw pivotally mounted on one of said lever sections, a compression spring normally holding said claw in selected pin engaging positions, a transversely reciprocable bar mounted on the lower of said carriage sections and pivotally connected to a second section of said telescoping lever, a second bar parallel to said first bar and connected to said bar by links, a scriber carriage slidably mounted on said second bar, means for releasably connecting said scriber carriage with said second bar, a plurality of stops for selectively limiting the movement of said first carriage with respect to said base, a spring for raising said scriber carriage and for holding it raised, two tension springs for returning said extensible carriage to initial position, a rack on said upper carriage section, a, pinion revolubly mounted on said base and in engagement with said rack, and an operating lever connected with said pinion.

MARK A. MATTARE.

REFERENCES CITED 7, The following references are of record in the 

